From inside (document excerpt):
24ANA7 Infinityt Series Air Conditioner with Puronr Refrigerant 2 To 5 Nominal Tons Wiring Diagrams VIO CL GRY GRY BLK L1 208/230 1Ø POWER SUPPLY L2 C C CH 11 23 EQUIP GND 21 23 BRN BRN/YEL 11 21 BLU SR 6 8 2 4 YEL SC BRN BLK YEL BLU YEL BLU COMP
FAN MOTOR FURNISHED WITH INHERENT THERMAL PROTECTION. TO BE WIRED IN ACCORDANCE WITH NATIONAL ELECTRIC CODE (N.E.C.) AND LOCAL CODES. OUTDOOR UNIT CONTROL REQUIRES A MINIMUM OF 27 VA, 24 VAC CONTROL POWER. USE COPPER CONDUCTORS ONLY. USE CONDUCTORS SUITABLE FOR AT LEAST 70ºC (167ºF). IF INDOOR SECTION HAS A TRANSFORMER WITH A GROUNDED SECONDARY, CONNECT THE GROUNDED SIDE TO “C “. 7. IF ANY OF THE ORIGINAL WIRE, AS SUPPLIED, MUST BE REPLACED, USE THE SAME OR EQUIVALENT WIRE. 8. CHECK ALL ELECTRICAL CONNECTIONS INSIDE CONTROL BOX FOR TIGHTNESS. 9. DO NOT ATTEMPT TO OPERATE UNIT UNTIL SERVICE VALVES HAVE BEEN OPENED (BACK SEATED). 10. MUST USE THERMOSTAT LISTED IN PRE-SALE LITERATURE. 11. COMPRESSOR WINDINGS SHOWN FOR 2 CYLINDER OPERATION. FOR 1 CYLINDER OPERATION REVERSE R AND S MARKINGS.